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The latest version of the OpenBSD secure operating system has been released.

A quick review :

OpenBSD 5.7 main feature is USB 3.0 support via the xhci(4) driver.

As usual there is a lot of driver improvement bringing support for new hardware.

On the security side :

  • Stricter enforcement of W^X in the kernel
  • procsfs has been removed
  • Support for loadable kernel modules has been removed
  • rand(3) and random(3) return by default non-deterministic numbers
  • MD5 has been replaced by SHA512 in several places.
  • The new SiHash algorithm is used in hash tables

Among the new features :

  • New rcctl utility to control daemons
  • fw_update has been rewritten to be faster and smarter
  • Fast assembly versions of some libc functions on amd64
  • The mbuf layer has been made mpsafe.
  • TLS support for syslogd
  • inetd uses libevent instead of select
  • The new httpd is getting more useful
  • OpenSSH 6.8
  • OpenSMTPD 5.4.4
  • New LibreSSL (OpenSSL fork) with ALPN support

Several daemons have been removed from base :

  • Nginx
  • Sendmail
  • BIND

You can read the release notes here.

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